• IT Services
• Essential Stanford Software
• Connecting to SUNet
• Configuring the Windows XP Internet Connection Firewall

Configuring the Windows XP Internet Connection Firewall to Work with Stanford Web Authentication and File Sharing

Some Internet programs, such as Stanford Web Authentication (also known as WebAuth), may not work as expected when the Internet Connection Firewall (ICF) feature is enabled. Computers on which ICF is enabled are also prevented from sharing files.

For users who obtained their version of Windows XP through the University's Dell Bundles, ICF is turned off by default. If you purchased Windows XP on your own, ICF will be turned on by default. See the Microsoft Windows XP web site for more information about ICF and instructions on how to enable or disable it.

If you are a home user and have a dedicated connection to the network (such as a DSL line), ICF may be useful in helping to protect your computer.

To configure the Internet Connection Firewall to work with WebAuth and file sharing:

1. Right click on My Network Places on the desktop and select Properties from the popup menu.
   
   
   
   

   Note: If you don't have the My Network Places icon on your desktop:

   • Category View: Click the Start button and select Control Panel. Select the Network and Internet Connections category. Then, select the Network Connections control panel icon.
     
     
   • Classic View: Click the Start button and select Control Panel. Then, select the Network Connections control panel icon.
   
   
2. Right click on your network connection, and select Properties from the popup menu.
   
   
   
   
3. When the Connection Properties dialog box is displayed, click the Advanced tab.
   
   
4. Make sure that the Internet Connection Firewall box is checked and then click the Settings button.
   
   
   
   
5. Click the Add button in the Advanced Settings dialog box.
   
   
   
   
6. Enter the following information in the Service Settings dialog box and then click OK.
   • Description of service: Webauth
   • Name or IP address: . (a period)
   • External Port number for this service: 113
   • Internal Port number for this service: 113
   
   
   
   
7. In the Advanced Settings dialog box, click the Add button again to enable file sharing.
   
   
8. Enter the following information in the Service Settings dialog box and then click OK.
   • Description of service: FileSharing
   • Name or IP address: . (a period)
   • External Port number for this service: 139
   • Internal Port number for this service: 139
   
   
   
   
9. Verify that the FileSharing and Webauth services are listed and checked.
   
   
   
   
10. Click OK to close the Advance Settings dialog box.
    
    
11. Click OK to close the Connection Properties dialog box and save the changes.